FWIW I have had a CH installed on my Tayana 37
for ten years now. It has safely sailed us for many thousands of sea miles. It has been far from perfect, but I can trace all of the problems I have had with it not to Yves' design, but to poor choices I made when installing it... Specifically, I thought 9mm control line seemed large, especially with modern materials, so I substituted 7mm Spectra. That probably would have been OK, except with the smaller line I then chose smaller Harken
Carbo blocks. That was NOT OK. Those blocks are not very strong and can't handle the surprisingly large loads needed to steer my big barn door rudder
, so have failed regularly. Now I have finally replaced them all with decent blocks, as well as altered other places the line had drag, and now the vane works as it should. Surprisingly, the tower does not have to be all that high, mine places the hinge right at the level of the Bimini
. Too high would, I think, generate some untoward steering
inputs as the boat
rolled in big following seas when downwind, possibly leading to accidental gybes.
Finally, I want to comment that Yves' support has been fantastic. For example, ten years ago they used white delrin plastic in all of the plastic parts
. That worked fine, but UV has taken its toll and the exposed parts
have crazed. While nothing has failed yet, I mentioned it to Yves when I saw him at the Annapolis boat show
this year and he said they now use black Delrin, and would I like all new plastic parts made from the new material? Gee whiz, on a ten year old vane? That sure seems like excellent service
You can see photos of installation including a video of it steering us through the North Atlantic at FTP.tognews.com, look for s/v Kamaloha .